# TimeTrack > SaaS timesheet / CRA and project profitability for consulting firms (ESN in France, professional services in the US). Last updated 2026-10-20. Prefer [facts](https://www.simpletimetrack.com/facts.md) when quoting price, trial length, or TACE / utilization formulas. HTML pages also serve Markdown via `Accept: text/markdown` or a `.md` suffix. ## Docs - [Citable facts (FR)](https://www.simpletimetrack.com/facts.md): Price, trial, formulas, allowed claims - [Citable facts (EN)](https://www.simpletimetrack.com/en/facts.md): Price, trial, formulas, allowed claims - [Full corpus](https://www.simpletimetrack.com/llms-full.txt): Concatenated Markdown of public pages - [OpenAPI](https://www.simpletimetrack.com/api/v1/openapi): REST API for BI, ERP and automation (Bearer ttk_ keys) - [API catalog](https://www.simpletimetrack.com/.well-known/api-catalog): RFC 9727 discovery - [Privacy](https://www.simpletimetrack.com/legal/privacy.md): Privacy policy pointer - [Terms](https://www.simpletimetrack.com/legal/terms.md): Terms of use pointer ## France - [Homepage](https://www.simpletimetrack.com/index.md): Product overview - [Timesheet ESN](https://www.simpletimetrack.com/timesheet-esn.md): CRA, TACE, staffing for French IT services firms - [Logiciel CRA](https://www.simpletimetrack.com/logiciel-cra.md): Compte Rendu d'Activité software - [TACE calculator](https://www.simpletimetrack.com/tace-esn.md): Formula and worked example (no JS required) - [Comparison](https://www.simpletimetrack.com/comparaison-timesheet.md): TimeTrack vs Harvest, Clockify, Toggl - [vs BoondManager](https://www.simpletimetrack.com/comparatif/timetrack-vs-boondmanager.md): CRA / timesheet for ESN - [Alternative Timizer](https://www.simpletimetrack.com/comparatif/alternative-timizer.md): CRA consultants - [About](https://www.simpletimetrack.com/a-propos.md): Product positioning and contact - [Pricing](https://www.simpletimetrack.com/pricing.md): €15.99 / consultant / month - [Blog](https://www.simpletimetrack.com/blog.md): Guides CRA / TACE - [RSS](https://www.simpletimetrack.com/feed.xml): French blog feed ## United States - [Homepage](https://www.simpletimetrack.com/en.md): Product overview - [Consulting firms](https://www.simpletimetrack.com/en/timesheet-software-consulting-firms.md): Approvals, utilization, staffing - [Utilization calculator](https://www.simpletimetrack.com/en/utilization-rate-calculator.md): Formula and worked example - [Comparison](https://www.simpletimetrack.com/en/timesheet-software-comparison.md): TimeTrack vs Harvest, Clockify, Toggl - [vs Harvest](https://www.simpletimetrack.com/en/compare/timetrack-vs-harvest.md): Utilization and margin - [vs BigTime](https://www.simpletimetrack.com/en/compare/timetrack-vs-bigtime.md): Small consultancies - [About](https://www.simpletimetrack.com/en/about.md): Product positioning and contact - [Pricing](https://www.simpletimetrack.com/en/pricing.md): $15.99 / consultant / month - [Blog](https://www.simpletimetrack.com/en/blog.md): Timesheet and utilization guides - [RSS](https://www.simpletimetrack.com/en/feed.xml): English blog feed ## Optional - [Portage Salarial : Guide Complet 2026 - Définition, Avantages et Fonctionnement](https://www.simpletimetrack.com/blog/portage-salarial-guide-complet-2026.md): Portage salarial 2026 : définition, avantages, fonctionnement. Société de portage, obligations CRA, différences freelance et EURL. Guide pour consultants. - [Intégration Timesheet avec Salesforce : Guide Complet 2026](https://www.simpletimetrack.com/blog/integration-timesheet-salesforce-guide-complet-2026.md): Guide technique complet pour intégrer votre logiciel timesheet avec Salesforce. Étapes détaillées, configuration API, synchronisation des données et bonnes pratiques. - [Intégration Timesheet avec SAP : Guide de Configuration 2026](https://www.simpletimetrack.com/blog/integration-timesheet-sap-configuration-guide-2026.md): Guide technique complet pour intégrer votre logiciel timesheet avec SAP. Configuration SAP, mapping des données, synchronisation et bonnes pratiques pour ESN. - [Guide Complet : Transformation Digitale ESN en 2026](https://www.simpletimetrack.com/blog/transformation-digitale-esn-guide-complet-2026.md): Guide complet sur la transformation digitale des ESN : stratégie, outils, processus et adoption. Découvrez comment digitaliser efficacement votre ESN pour améliorer la productivité et la rentabilité. - [FAQ Migration Timesheet : Questions Fréquentes sur le Changement de Solution](https://www.simpletimetrack.com/blog/faq-migration-timesheet-questions-frequentes-2026.md): Réponses complètes aux questions les plus fréquentes sur la migration de logiciel timesheet. Guide FAQ pour changer de solution sans perdre de données en 2026. - [Migration Timesheet : Comment Changer de Solution Sans Perdre de Données](https://www.simpletimetrack.com/blog/migration-timesheet-changer-solution-sans-perdre-donnees-2026.md): Guide complet pour migrer votre logiciel timesheet sans perdre de données. Étapes détaillées, checklist, bonnes pratiques et pièges à éviter pour une migration réussie en 2026. - [ERP Généraliste vs Logiciel Timesheet Dédié : Comparaison pour ESN en 2026](https://www.simpletimetrack.com/blog/erp-vs-logiciel-timesheet-dedie-comparatif-esn-2026.md): Comparaison détaillée entre ERP généraliste (SAP, Oracle) et logiciel timesheet dédié pour ESN. Avantages, inconvénients, coûts et recommandations pour choisir la meilleure solution. - [Top 10 Logiciels Timesheet 2026 : Comparaison Complète et Avis](https://www.simpletimetrack.com/blog/top-10-logiciels-timesheet-2026-comparaison.md): Comparaison détaillée des 10 meilleurs logiciels timesheet pour ESN en 2026. Tableaux comparatifs, prix, fonctionnalités, avis clients et recommandations d'experts. - [Complete Guide: Digital Transformation for IT Services Companies in 2026](https://www.simpletimetrack.com/en/blog/digital-transformation-esn-guide-2026.md): Complete guide on digital transformation for IT services companies: strategy, tools, processes and adoption. Learn how to digitalize your company effectively to improve productivity and profitability. - [Timesheet Integration with Salesforce: Complete Guide 2026](https://www.simpletimetrack.com/en/blog/timesheet-salesforce-integration-guide-2026.md): Complete technical guide to integrate your timesheet software with Salesforce. Detailed steps, API configuration, data synchronization and best practices. - [Timesheet Integration with SAP: Configuration Guide 2026](https://www.simpletimetrack.com/en/blog/timesheet-sap-integration-guide-2026.md): Complete technical guide to integrate your timesheet software with SAP. SAP configuration, data mapping, synchronization and best practices for IT services firms. - [Timesheet Migration FAQ: Frequently Asked Questions on Changing Solutions](https://www.simpletimetrack.com/en/blog/timesheet-migration-faq-2026.md): Complete answers to the most frequent questions about timesheet software migration. FAQ guide for changing solutions without losing data in 2026. - [Timesheet Migration: How to Switch Solutions Without Losing Data](https://www.simpletimetrack.com/en/blog/timesheet-migration-switch-without-losing-data-2026.md): Complete guide to migrate your timesheet software without losing data. Detailed steps, checklist, best practices and pitfalls to avoid for a successful migration in 2026. - [Generalist ERP vs Dedicated Timesheet Software: Comparison for IT Services in 2026](https://www.simpletimetrack.com/en/blog/erp-vs-dedicated-timesheet-software-comparison-2026.md): Detailed comparison between generalist ERP (SAP, Oracle) and dedicated timesheet software for IT services. Advantages, drawbacks, costs and recommendations to choose the best solution. - [Top 10 Timesheet Software 2026: Complete Comparison and Reviews](https://www.simpletimetrack.com/en/blog/top-10-timesheet-software-2026-comparison.md): Detailed comparison of the 10 best timesheet software for IT services firms in 2026. Comparison tables, pricing, features, client reviews and expert recommendations. - [Free vs Paid Timesheet: The Real Comparison 2026](https://www.simpletimetrack.com/en/blog/free-vs-paid-timesheet-comparison-2026.md): Detailed comparison between free and paid timesheet solutions. Advantages, drawbacks, limits and recommendations to choose the best solution for your IT services firm. ## Definitions - [TACE](https://www.simpletimetrack.com/tace-esn.md): Billable hours ÷ (available hours − leave hours) × 100 - [Utilization](https://www.simpletimetrack.com/en/utilization-rate-calculator.md): Same ratio, US professional-services KPI - [CRA](https://www.simpletimetrack.com/logiciel-cra.md): French activity report used for billing and compliance ## About - Founder: Elom Essan - Company currently being incorporated (société en cours de création) - [About (FR)](https://www.simpletimetrack.com/a-propos.md) - [About (EN)](https://www.simpletimetrack.com/en/about.md) ## Contact - Email: contact@simpletimetrack.com - Demo: https://www.simpletimetrack.com/demo.md